uraninite

noun
ura·ni·nite | \yu̇-ˈrā-nə-ˌnīt \

Definition of uraninite 

: a black octahedral mineral that consists of an oxide of uranium which usually contains thorium, lead, and rare earth elements and is the chief ore of uranium

First Known Use of uraninite

1879, in the meaning defined above

History and Etymology for uraninite

German Uranin uraninite (from New Latin uranium) + English -ite

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Dictionary Entries near uraninite

uranicentric

uranide

uraniferous

uraninite

uranism

uranist

uranium

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The first known use of uraninite was in 1879

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More Definitions for uraninite

uraninite

noun
ura·ni·nite | \yu̇-ˈrā-nə-ˌnīt \

Medical Definition of uraninite 

: a mineral that is basically a black octahedral or cubic oxide of uranium containing lead, thorium, and rare earth elements and that is the chief ore of uranium

More from Merriam-Webster on uraninite

Britannica.com: Encyclopedia article about uraninite

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